linux-kernel - Re: [PATCH v2 0/9] driver core: Fix some device links issues and add "consumer autoprobe" flag

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Message-ID: <20190201090536.GA17484@kroah.com>
Date:   Fri, 1 Feb 2019 10:05:36 +0100
From:   Greg Kroah-Hartman <gregkh@...uxfoundation.org>
To:     "Rafael J. Wysocki" <rjw@...ysocki.net>
Cc:     LKML <linux-kernel@...r.kernel.org>,
        Linux PM <linux-pm@...r.kernel.org>,
        Ulf Hansson <ulf.hansson@...aro.org>,
        Daniel Vetter <daniel@...ll.ch>,
        Lukas Wunner <lukas@...ner.de>,
        Andrzej Hajda <a.hajda@...sung.com>,
        Russell King - ARM Linux <linux@...linux.org.uk>,
        Lucas Stach <l.stach@...gutronix.de>,
        Linus Walleij <linus.walleij@...aro.org>,
        Thierry Reding <thierry.reding@...il.com>,
        Laurent Pinchart <laurent.pinchart@...asonboard.com>,
        Marek Szyprowski <m.szyprowski@...sung.com>,
        Joerg Roedel <jroedel@...e.de>
Subject: Re: [PATCH v2 0/9] driver core: Fix some device links issues and add
 "consumer autoprobe" flag

On Fri, Feb 01, 2019 at 01:44:59AM +0100, Rafael J. Wysocki wrote:
> Hi Greg at al,
> 
> This is a combination of the two device links series I have posted
> recently (https://lore.kernel.org/lkml/2493187.oiOpCWJBV7@aspire.rjw.lan/
> and https://lore.kernel.org/lkml/2405639.4es7pRLqn0@aspire.rjw.lan/) rebased
> on top of your driver-core-next branch.
> 
> Recently I have been looking at the device links code because of the
> recent discussion on possibly using them in the DRM subsystem (see for
> example https://marc.info/?l=linux-pm&m=154832771905309&w=2) and I have
> found a few issues in that code which should be addressed by this patch
> series.  Please refer to the patch changelogs for details.
> 
> None of the problems addressed here should be manifesting themselves in
> mainline kernel today, but if there are more device links users in the
> future, they most likely will be encountered sooner or later.  Also they
> need to be fixed for the DRM use case to be supported IMO.
> 
> On top of this the series makes device links support the "composite device"
> use case in the DRM subsystem mentioned above (essentially, the last patch
> in the series is for that purpose).

All now queued up, thanks!

greg k-h